Improvement in telegraph-insulators



A. B. ELY.

Telegraph-Wire Insulator.

Patented March 27, 1866.

Wiinesses;

UNITED STATES PATENT OFFICE.

A. B. ELY, OF NEWTON, MASSACHUSETTS.

IMPROVEMENT IN TELEGRAPH-INSULATORS.

Specification forming part of Letters Patent No. 53,427, dated March 27, 1866.

To all whom it may concern:

The drawing is a sectional view, A being); Be it known that I, A. B. ELY, of Newton,

the hardrubber-covered pin-hook, and B the in the State of Massachusetts, have invented, disk of hard rubber, (or vulcanized), which is as a new article of manufacture, an Improved l to be firmly and tightly attached to or made Pin-Hook for Supporting Telegraphic Wires; apart of the rubber shank of the hook, and and the followingis an exact description thereto project out horizontally, or essentially so, of. over the hook.

Iron pin-hooks with rubber screw-covered What- I claim as an article of manufacture shanks, and also with a hollow rubber cone isattached, have been in use heretofore. My pin-hook with its attachment is made by fitting tightly to the rubber shank a disk of rubber projecting essentially at a right angle from the shank above the hook. Hard rubber is the best material to be used.

The rubber screw-covered pin-hook with rubber disk attached. as described.

A. B. ELY.

Wi tnesscs:

W. M. PARKER, J. E. FARWELL. 

